250 for a set of JE pistons and aftermarket rods is a deal that most people will never see... $500 would be more inline... Its not uncommon for a forged piston to make "some" noise when the engine is cold.. When they heat up, they expand and the noise goes away. I have a GSR block right now sitting on a stand that was built by inline pro.. It is was sleeved to stock bore.. JE pistons and you can wiggle them slightly from side to side..